66430532452 has 48 divisors (see below), whose sum is σ = 121731261120. Its totient is φ = 31688122752.

The previous prime is 66430532423. The next prime is 66430532533. The reversal of 66430532452 is 25423503466.

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, 3457023 + ... + 3476185.

It is an arithmetic number, because the mean of its divisors is an integer number (2536067940).

Almost surely, 2^66430532452 is an apocalyptic number.

It is an amenable number.

66430532452 is a deficient number, since it is larger than the sum of its proper divisors (55300728668).

66430532452 is a wasteful number, since it uses less digits than its factorization.

66430532452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19660 (or 19658 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 40.

The spelling of 66430532452 in words is "sixty-six billion, four hundred thirty million, five hundred thirty-two thousand, four hundred fifty-two".