71550657051 has 32 divisors (see below), whose sum is σ = 98387274240. Its totient is φ = 46231430400.

The previous prime is 71550657023. The next prime is 71550657053. The reversal of 71550657051 is 15075605517.

It is a happy number.

It is not a de Polignac number, because 71550657051 - 2⁶ = 71550656987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71550656994 and 71550657012.

It is not an unprimeable number, because it can be changed into a prime (71550657053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19488946 + ... + 19492616.

It is an arithmetic number, because the mean of its divisors is an integer number (3074602320).

Almost surely, 2^71550657051 is an apocalyptic number.

71550657051 is a deficient number, since it is larger than the sum of its proper divisors (26836617189).

71550657051 is a wasteful number, since it uses less digits than its factorization.

71550657051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267.

The product of its (nonzero) digits is 183750, while the sum is 42.

The spelling of 71550657051 in words is "seventy-one billion, five hundred fifty million, six hundred fifty-seven thousand, fifty-one".