32146666947 has 24 divisors (see below), whose sum is σ = 47160798048. Its totient is φ = 21096633600.

The previous prime is 32146666943. The next prime is 32146666949. The reversal of 32146666947 is 74966664123.

It is a happy number.

It is not a de Polignac number, because 32146666947 - 2² = 32146666943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32146666893 and 32146666902.

It is not an unprimeable number, because it can be changed into a prime (32146666943) 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, 378747 + ... + 455787.

It is an arithmetic number, because the mean of its divisors is an integer number (1965033252).

Almost surely, 2^32146666947 is an apocalyptic number.

32146666947 is a deficient number, since it is larger than the sum of its proper divisors (15014131101).

32146666947 is a wasteful number, since it uses less digits than its factorization.

32146666947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77771 (or 77768 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The spelling of 32146666947 in words is "thirty-two billion, one hundred forty-six million, six hundred sixty-six thousand, nine hundred forty-seven".