157620375746 has 8 divisors (see below), whose sum is σ = 240306474684. Its totient is φ = 77518217520.

The previous prime is 157620375721. The next prime is 157620375761. The reversal of 157620375746 is 647573026751.

It can be written as a sum of positive squares in 2 ways, for example, as 119862056521 + 37758319225 = 346211^2 + 194315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon 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, 645985025 + ... + 645985268.

Almost surely, 2^157620375746 is an apocalyptic number.

157620375746 is a deficient number, since it is larger than the sum of its proper divisors (82686098938).

157620375746 is a wasteful number, since it uses less digits than its factorization.

157620375746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291970356.

The product of its (nonzero) digits is 7408800, while the sum is 53.

The spelling of 157620375746 in words is "one hundred fifty-seven billion, six hundred twenty million, three hundred seventy-five thousand, seven hundred forty-six".