64475706153999 has 32 divisors (see below), whose sum is σ = 102527712691200. Its totient is φ = 35238858285312.

The previous prime is 64475706153961. The next prime is 64475706154001. The reversal of 64475706153999 is 99935160757446.

It is not a de Polignac number, because 64475706153999 - 2¹⁹ = 64475705629711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64475706153999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64475706155999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1992027 + ... + 11529075.

It is an arithmetic number, because the mean of its divisors is an integer number (3203991021600).

Almost surely, 2^{64475706153999} is an apocalyptic number.

64475706153999 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

64475706153999 is a deficient number, since it is larger than the sum of its proper divisors (38052006537201).

64475706153999 is a wasteful number, since it uses less digits than its factorization.

64475706153999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9551079.

The product of its (nonzero) digits is 1543147200, while the sum is 75.

The spelling of 64475706153999 in words is "sixty-four trillion, four hundred seventy-five billion, seven hundred six million, one hundred fifty-three thousand, nine hundred ninety-nine".