157620072345 has 32 divisors (see below), whose sum is σ = 254397628800. Its totient is φ = 83330732544.

The previous prime is 157620072341. The next prime is 157620072347. The reversal of 157620072345 is 543270026751.

It is not a de Polignac number, because 157620072345 - 2² = 157620072341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157620072297 and 157620072306.

It is not an unprimeable number, because it can be changed into a prime (157620072341) 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, 1303621 + ... + 1419389.

It is an arithmetic number, because the mean of its divisors is an integer number (7949925900).

Almost surely, 2^157620072345 is an apocalyptic number.

157620072345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157620072345 is a deficient number, since it is larger than the sum of its proper divisors (96777556455).

157620072345 is a wasteful number, since it uses less digits than its factorization.

157620072345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116569.

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 157620072345 in words is "one hundred fifty-seven billion, six hundred twenty million, seventy-two thousand, three hundred forty-five".