156126761550 has 96 divisors (see below), whose sum is σ = 455522853600. Its totient is φ = 39184750080.

The previous prime is 156126761521. The next prime is 156126761551. The reversal of 156126761550 is 55167621651.

It is a happy number.

156126761550 is a `hidden beast` number, since 1 + 5 + 6 + 1 + 26 + 7 + 615 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 156126761496 and 156126761505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156126761551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3378505 + ... + 3424404.

It is an arithmetic number, because the mean of its divisors is an integer number (4745029725).

Almost surely, 2^156126761550 is an apocalyptic number.

156126761550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156126761550 is an abundant number, since it is smaller than the sum of its proper divisors (299396092050).

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

156126761550 is a wasteful number, since it uses less digits than its factorization.

156126761550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6802947 (or 6802936 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 156126761550 in words is "one hundred fifty-six billion, one hundred twenty-six million, seven hundred sixty-one thousand, five hundred fifty".