157022376120721 has 4 divisors (see below), whose sum is σ = 157024901023744. Its totient is φ = 157019851217700.

The previous prime is 157022376120707. The next prime is 157022376120769. The reversal of 157022376120721 is 127021673220751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157022376120721 - 2⁹ = 157022376120209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157022376100721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262358225 + ... + 1262482606.

It is an arithmetic number, because the mean of its divisors is an integer number (39256225255936).

Almost surely, 2^{157022376120721} is an apocalyptic number.

It is an amenable number.

157022376120721 is a deficient number, since it is larger than the sum of its proper divisors (2524903023).

157022376120721 is an equidigital number, since it uses as much as digits as its factorization.

157022376120721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524903022.

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 157022376120721 in words is "one hundred fifty-seven trillion, twenty-two billion, three hundred seventy-six million, one hundred twenty thousand, seven hundred twenty-one".