157015753705 has 4 divisors (see below), whose sum is σ = 188418904452. Its totient is φ = 125612602960.

The previous prime is 157015753693. The next prime is 157015753729. The reversal of 157015753705 is 507357510751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56886543081 + 100129210624 = 238509^2 + 316432^2 .

It is not a de Polignac number, because 157015753705 - 2⁵ = 157015753673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15701575366 + ... + 15701575375.

It is an arithmetic number, because the mean of its divisors is an integer number (47104726113).

Almost surely, 2^157015753705 is an apocalyptic number.

It is an amenable number.

157015753705 is a deficient number, since it is larger than the sum of its proper divisors (31403150747).

157015753705 is an equidigital number, since it uses as much as digits as its factorization.

157015753705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31403150746.

The product of its (nonzero) digits is 643125, while the sum is 46.

The spelling of 157015753705 in words is "one hundred fifty-seven billion, fifteen million, seven hundred fifty-three thousand, seven hundred five".