156416763242 has 4 divisors (see below), whose sum is σ = 234625144866. Its totient is φ = 78208381620.

The previous prime is 156416763227. The next prime is 156416763253. The reversal of 156416763242 is 242367614651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242367614651 = 313 ⋅774337427.

It can be written as a sum of positive squares in only one way, i.e., 146238172921 + 10178590321 = 382411^2 + 100889^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39104190809 + ... + 39104190812.

Almost surely, 2^156416763242 is an apocalyptic number.

156416763242 is a deficient number, since it is larger than the sum of its proper divisors (78208381624).

156416763242 is an equidigital number, since it uses as much as digits as its factorization.

156416763242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78208381623.

The product of its digits is 1451520, while the sum is 47.

The spelling of 156416763242 in words is "one hundred fifty-six billion, four hundred sixteen million, seven hundred sixty-three thousand, two hundred forty-two".