1616157157 has 8 divisors (see below), whose sum is σ = 1701587360. Its totient is φ = 1530763920.

The previous prime is 1616157133. The next prime is 1616157161. The reversal of 1616157157 is 7517516161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1616157157 - 2¹¹ = 1616155109 is a prime.

It is a super-2 number, since 2×1616157157² = 5223927912244645298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616157457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162778 + ... + 172420.

It is an arithmetic number, because the mean of its divisors is an integer number (212698420).

Almost surely, 2^1616157157 is an apocalyptic number.

It is an amenable number.

1616157157 is a deficient number, since it is larger than the sum of its proper divisors (85430203).

1616157157 is an equidigital number, since it uses as much as digits as its factorization.

1616157157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18483.

The product of its digits is 44100, while the sum is 40.

The square root of 1616157157 is about 40201.4571502079. The cubic root of 1616157157 is about 1173.5309014244.

The spelling of 1616157157 in words is "one billion, six hundred sixteen million, one hundred fifty-seven thousand, one hundred fifty-seven".