66962474634 has 32 divisors (see below), whose sum is σ = 146974818816. Its totient is φ = 20170148720.

The previous prime is 66962474633. The next prime is 66962474651. The reversal of 66962474634 is 43647426966.

66962474634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66962474633) 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, 3026652 + ... + 3048695.

It is an arithmetic number, because the mean of its divisors is an integer number (4592963088).

Almost surely, 2^66962474634 is an apocalyptic number.

66962474634 is an abundant number, since it is smaller than the sum of its proper divisors (80012344182).

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

66962474634 is a wasteful number, since it uses less digits than its factorization.

66962474634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6075530.

The product of its digits is 31352832, while the sum is 57.

The spelling of 66962474634 in words is "sixty-six billion, nine hundred sixty-two million, four hundred seventy-four thousand, six hundred thirty-four".