156563413646 has 4 divisors (see below), whose sum is σ = 234845120472. Its totient is φ = 78281706822.

The previous prime is 156563413627. The next prime is 156563413739. The reversal of 156563413646 is 646314365651.

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

It is a junction number, because it is equal to n+sod(n) for n = 156563413594 and 156563413603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39140853410 + ... + 39140853413.

It is an arithmetic number, because the mean of its divisors is an integer number (58711280118).

Almost surely, 2^156563413646 is an apocalyptic number.

156563413646 is a deficient number, since it is larger than the sum of its proper divisors (78281706826).

156563413646 is an equidigital number, since it uses as much as digits as its factorization.

156563413646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78281706825.

The product of its digits is 4665600, while the sum is 50.

The spelling of 156563413646 in words is "one hundred fifty-six billion, five hundred sixty-three million, four hundred thirteen thousand, six hundred forty-six".