157051791945 has 32 divisors (see below), whose sum is σ = 280981587840. Its totient is φ = 83227435200.

The previous prime is 157051791943. The next prime is 157051791959. The reversal of 157051791945 is 549197150751.

157051791945 is a `hidden beast` number, since 1 + 5 + 70 + 517 + 9 + 19 + 45 = 666.

It is not a de Polignac number, because 157051791945 - 2¹ = 157051791943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157051791891 and 157051791900.

It is not an unprimeable number, because it can be changed into a prime (157051791943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3683731 + ... + 3726120.

It is an arithmetic number, because the mean of its divisors is an integer number (8780674620).

Almost surely, 2^157051791945 is an apocalyptic number.

157051791945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157051791945 is a deficient number, since it is larger than the sum of its proper divisors (123929795895).

157051791945 is a wasteful number, since it uses less digits than its factorization.

157051791945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7410022 (or 7410016 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 54.

The spelling of 157051791945 in words is "one hundred fifty-seven billion, fifty-one million, seven hundred ninety-one thousand, nine hundred forty-five".