65100181994972 has 6 divisors (see below), whose sum is σ = 113925318491208. Its totient is φ = 32550090997484.

The previous prime is 65100181994957. The next prime is 65100181994977. The reversal of 65100181994972 is 27949918100156.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65100181994977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8137522749368 + ... + 8137522749375.

It is an arithmetic number, because the mean of its divisors is an integer number (18987553081868).

Almost surely, 2^{65100181994972} is an apocalyptic number.

It is an amenable number.

65100181994972 is a deficient number, since it is larger than the sum of its proper divisors (48825136496236).

65100181994972 is a wasteful number, since it uses less digits than its factorization.

65100181994972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16275045498747 (or 16275045498745 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 62.

The spelling of 65100181994972 in words is "sixty-five trillion, one hundred billion, one hundred eighty-one million, nine hundred ninety-four thousand, nine hundred seventy-two".