157041687168721 has 8 divisors (see below), whose sum is σ = 157074066100224. Its totient is φ = 157009311586560.

The previous prime is 157041687168719. The next prime is 157041687168739. The reversal of 157041687168721 is 127861786140751.

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 157041687168721 - 2¹ = 157041687168719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157041687168701) 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, 94052080 + ... + 95707246.

It is an arithmetic number, because the mean of its divisors is an integer number (19634258262528).

Almost surely, 2^{157041687168721} is an apocalyptic number.

It is an amenable number.

157041687168721 is a deficient number, since it is larger than the sum of its proper divisors (32378931503).

157041687168721 is a wasteful number, since it uses less digits than its factorization.

157041687168721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674671.

The product of its (nonzero) digits is 31610880, while the sum is 64.

The spelling of 157041687168721 in words is "one hundred fifty-seven trillion, forty-one billion, six hundred eighty-seven million, one hundred sixty-eight thousand, seven hundred twenty-one".