156215206452 has 48 divisors (see below), whose sum is σ = 368270667072. Its totient is φ = 51535511040.

The previous prime is 156215206439. The next prime is 156215206457. The reversal of 156215206452 is 254602512651.

It is a self number, because there is not a number n which added to its sum of digits gives 156215206452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156215206457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453148 + ... + 719564.

It is an arithmetic number, because the mean of its divisors is an integer number (7672305564).

Almost surely, 2^156215206452 is an apocalyptic number.

156215206452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

156215206452 is an abundant number, since it is smaller than the sum of its proper divisors (212055460620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156215206452 is a wasteful number, since it uses less digits than its factorization.

156215206452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266928 (or 266926 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 156215206452 in words is "one hundred fifty-six billion, two hundred fifteen million, two hundred six thousand, four hundred fifty-two".