155151616650 has 96 divisors (see below), whose sum is σ = 387633094656. Its totient is φ = 41067000000.

The previous prime is 155151616637. The next prime is 155151616651. The reversal of 155151616650 is 56616151551.

It is not an unprimeable number, because it can be changed into a prime (155151616651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44188395 + ... + 44191905.

It is an arithmetic number, because the mean of its divisors is an integer number (4037844736).

Almost surely, 2^155151616650 is an apocalyptic number.

155151616650 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 155151616650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193816547328).

155151616650 is an abundant number, since it is smaller than the sum of its proper divisors (232481478006).

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

155151616650 is a wasteful number, since it uses less digits than its factorization.

155151616650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5628 (or 5623 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 155151616650 in words is "one hundred fifty-five billion, one hundred fifty-one million, six hundred sixteen thousand, six hundred fifty".