66624352494 has 32 divisors (see below), whose sum is σ = 158905290240. Its totient is φ = 18207897312.

The previous prime is 66624352493. The next prime is 66624352541. The reversal of 66624352494 is 49425342666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66624352493) 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, 34483689 + ... + 34485620.

It is an arithmetic number, because the mean of its divisors is an integer number (4965790320).

Almost surely, 2^66624352494 is an apocalyptic number.

66624352494 is an abundant number, since it is smaller than the sum of its proper divisors (92280937746).

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

66624352494 is a wasteful number, since it uses less digits than its factorization.

66624352494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68969344.

The product of its digits is 7464960, while the sum is 51.

The spelling of 66624352494 in words is "sixty-six billion, six hundred twenty-four million, three hundred fifty-two thousand, four hundred ninety-four".