1616520150 has 144 divisors (see below), whose sum is σ = 5013616608. Its totient is φ = 365760000.

The previous prime is 1616520137. The next prime is 1616520151. The reversal of 1616520150 is 510256161.

It is a happy number.

1616520150 is a `hidden beast` number, since 1 + 6 + 1 + 652 + 0 + 1 + 5 + 0 = 666.

It is a super-2 number, since 2×1616520150² = 5226274790712045000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616520151) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 315610 + ... + 320690.

It is an arithmetic number, because the mean of its divisors is an integer number (34816782).

Almost surely, 2^1616520150 is an apocalyptic number.

1616520150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1616520150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2506808304).

1616520150 is an abundant number, since it is smaller than the sum of its proper divisors (3397096458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1616520150 is a wasteful number, since it uses less digits than its factorization.

1616520150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207 (or 5199 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1616520150 is about 40205.9715713972. The cubic root of 1616520150 is about 1173.6187541872.

It can be divided in two parts, 16165 and 20150, that added together give a triangular number (36315 = T₂₆₉).

The spelling of 1616520150 in words is "one billion, six hundred sixteen million, five hundred twenty thousand, one hundred fifty".