64254451266601 has 4 divisors (see below), whose sum is σ = 64438561442500. Its totient is φ = 64070341090704.

The previous prime is 64254451266581. The next prime is 64254451266641. The reversal of 64254451266601 is 10666215445246.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37932985368576 + 26321465898025 = 6158976^2 + 5130445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64254451266601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64254451266641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92055087426 + ... + 92055088123.

It is an arithmetic number, because the mean of its divisors is an integer number (16109640360625).

Almost surely, 2^{64254451266601} is an apocalyptic number.

It is an amenable number.

64254451266601 is a deficient number, since it is larger than the sum of its proper divisors (184110175899).

64254451266601 is a wasteful number, since it uses less digits than its factorization.

64254451266601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184110175898.

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 64254451266601 in words is "sixty-four trillion, two hundred fifty-four billion, four hundred fifty-one million, two hundred sixty-six thousand, six hundred one".