1616315540 has 24 divisors (see below), whose sum is σ = 3879157632. Its totient is φ = 554165280.

The previous prime is 1616315539. The next prime is 1616315543. The reversal of 1616315540 is 455136161.

It is a super-2 number, since 2×1616315540² = 5224951849690983200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616315497 and 1616315506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616315543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5772416 + ... + 5772695.

It is an arithmetic number, because the mean of its divisors is an integer number (161631568).

Almost surely, 2^1616315540 is an apocalyptic number.

1616315540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616315540 is an abundant number, since it is smaller than the sum of its proper divisors (2262842092).

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

1616315540 is a wasteful number, since it uses less digits than its factorization.

1616315540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11545127 (or 11545125 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1616315540 is about 40203.4269683568. The cubic root of 1616315540 is about 1173.5692354178.

The spelling of 1616315540 in words is "one billion, six hundred sixteen million, three hundred fifteen thousand, five hundred forty".