157649496601 has 3 divisors (see below), whose sum is σ = 157649893653. Its totient is φ = 157649099550.

The previous prime is 157649496553. The next prime is 157649496629. The reversal of 157649496601 is 106694946751.

The square root of 157649496601 is 397051.

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.

It is not a de Polignac number, because 157649496601 - 2²¹ = 157647399449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157649496401) 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, 198526 + ... + 595576.

It is an arithmetic number, because the mean of its divisors is an integer number (52549964551).

Almost surely, 2^157649496601 is an apocalyptic number.

157649496601 is the 397051-st square number.

157649496601 is the 198526-th centered octagonal number.

It is an amenable number.

157649496601 is a deficient number, since it is larger than the sum of its proper divisors (397052).

157649496601 is an frugal number, since it uses more digits than its factorization.

157649496601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794102 (or 397051 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 157649496601 in words is "one hundred fifty-seven billion, six hundred forty-nine million, four hundred ninety-six thousand, six hundred one".