157973730766 has 16 divisors (see below), whose sum is σ = 251151163056. Its totient is φ = 74265998976.

The previous prime is 157973730709. The next prime is 157973730779. The reversal of 157973730766 is 667037379751.

It is a super-2 number, since 2×157973730766² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2296236 + ... + 2364031.

It is an arithmetic number, because the mean of its divisors is an integer number (15696947691).

Almost surely, 2^157973730766 is an apocalyptic number.

157973730766 is a deficient number, since it is larger than the sum of its proper divisors (93177432290).

157973730766 is a wasteful number, since it uses less digits than its factorization.

157973730766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661283.

The product of its (nonzero) digits is 35006580, while the sum is 61.

The spelling of 157973730766 in words is "one hundred fifty-seven billion, nine hundred seventy-three million, seven hundred thirty thousand, seven hundred sixty-six".