66152071842 has 32 divisors (see below), whose sum is σ = 134004756480. Its totient is φ = 21767363280.

The previous prime is 66152071771. The next prime is 66152071873. The reversal of 66152071842 is 24817025166.

It is a happy number.

66152071842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66152071794 and 66152071803.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3303753 + ... + 3323715.

It is an arithmetic number, because the mean of its divisors is an integer number (4187648640).

Almost surely, 2^66152071842 is an apocalyptic number.

66152071842 is an abundant number, since it is smaller than the sum of its proper divisors (67852684638).

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

66152071842 is a wasteful number, since it uses less digits than its factorization.

66152071842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27038.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 66152071842 in words is "sixty-six billion, one hundred fifty-two million, seventy-one thousand, eight hundred forty-two".