66432954025 has 24 divisors (see below), whose sum is σ = 87237657504. Its totient is φ = 50011449600.

The previous prime is 66432954023. The next prime is 66432954047. The reversal of 66432954025 is 52045923466.

It is not a de Polignac number, because 66432954025 - 2¹ = 66432954023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66432954023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3544930 + ... + 3563620.

It is an arithmetic number, because the mean of its divisors is an integer number (3634902396).

Almost surely, 2^66432954025 is an apocalyptic number.

It is an amenable number.

66432954025 is a deficient number, since it is larger than the sum of its proper divisors (20804703479).

66432954025 is a wasteful number, since it uses less digits than its factorization.

66432954025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27081 (or 27076 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 66432954025 in words is "sixty-six billion, four hundred thirty-two million, nine hundred fifty-four thousand, twenty-five".