66015630233632 has 24 divisors (see below), whose sum is σ = 130765623394896. Its totient is φ = 32805313180992.

The previous prime is 66015630233599. The next prime is 66015630233669. The reversal of 66015630233632 is 23633203651066.

It is a super-2 number, since 2×66015630233632² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6328180198 + ... + 6328190629.

It is an arithmetic number, because the mean of its divisors is an integer number (5448567641454).

Almost surely, 2^{66015630233632} is an apocalyptic number.

It is an amenable number.

66015630233632 is a deficient number, since it is larger than the sum of its proper divisors (64749993161264).

66015630233632 is a wasteful number, since it uses less digits than its factorization.

66015630233632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12656371000 (or 12656370992 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 46.

Adding to 66015630233632 its reverse (23633203651066), we get a palindrome (89648833884698).

The spelling of 66015630233632 in words is "sixty-six trillion, fifteen billion, six hundred thirty million, two hundred thirty-three thousand, six hundred thirty-two".