1616953156 has 36 divisors (see below), whose sum is σ = 3544864428. Its totient is φ = 639672768.

The previous prime is 1616953141. The next prime is 1616953187. The reversal of 1616953156 is 6513596161.

It can be written as a sum of positive squares in 2 ways, for example, as 373262400 + 1243690756 = 19320^2 + 35266^2 .

It is a super-2 number, since 2×1616953156² = 5229075017396720672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314751 + ... + 319846.

Almost surely, 2^1616953156 is an apocalyptic number.

It is an amenable number.

1616953156 is an abundant number, since it is smaller than the sum of its proper divisors (1927911272).

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

1616953156 is a wasteful number, since it uses less digits than its factorization.

1616953156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634628 (or 634619 counting only the distinct ones).

The product of its digits is 145800, while the sum is 43.

The square root of 1616953156 is about 40211.3560577109. The cubic root of 1616953156 is about 1173.7235345276.

The spelling of 1616953156 in words is "one billion, six hundred sixteen million, nine hundred fifty-three thousand, one hundred fifty-six".