64612112195597 has 2 divisors, whose sum is σ = 64612112195598. Its totient is φ = 64612112195596.

The previous prime is 64612112195531. The next prime is 64612112195681. The reversal of 64612112195597 is 79559121121646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38442554442436 + 26169557753161 = 6200206^2 + 5115619^2 .

It is a cyclic number.

It is not a de Polignac number, because 64612112195597 - 2⁸ = 64612112195341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64612112995597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32306056097798 + 32306056097799.

It is an arithmetic number, because the mean of its divisors is an integer number (32306056097799).

Almost surely, 2^{64612112195597} is an apocalyptic number.

It is an amenable number.

64612112195597 is a deficient number, since it is larger than the sum of its proper divisors (1).

64612112195597 is an equidigital number, since it uses as much as digits as its factorization.

64612112195597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 59.

The spelling of 64612112195597 in words is "sixty-four trillion, six hundred twelve billion, one hundred twelve million, one hundred ninety-five thousand, five hundred ninety-seven".