157910069641 has 3 divisors (see below), whose sum is σ = 157910467021. Its totient is φ = 157909672262.

The previous prime is 157910069627. The next prime is 157910069741. The reversal of 157910069641 is 146960019751.

The square root of 157910069641 is 397379.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 146960019751 = 57719 ⋅2546129.

It is not a de Polignac number, because 157910069641 - 2²⁹ = 157373198729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157910069621) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 198690 + ... + 596068.

Almost surely, 2^157910069641 is an apocalyptic number.

157910069641 is the 397379-th square number.

157910069641 is the 198690-th centered octagonal number.

It is an amenable number.

157910069641 is a deficient number, since it is larger than the sum of its proper divisors (397380).

157910069641 is an frugal number, since it uses more digits than its factorization.

157910069641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794758 (or 397379 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

Multiplying 157910069641 by its sum of digits (49), we get a square (7737593412409 = 2781653²).

The spelling of 157910069641 in words is "one hundred fifty-seven billion, nine hundred ten million, sixty-nine thousand, six hundred forty-one".