64775507408662 has 4 divisors (see below), whose sum is σ = 97163261112996. Its totient is φ = 32387753704330.

The previous prime is 64775507408617. The next prime is 64775507408669. The reversal of 64775507408662 is 26680470557746.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64775507408669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16193876852164 + ... + 16193876852167.

It is an arithmetic number, because the mean of its divisors is an integer number (24290815278249).

Almost surely, 2^{64775507408662} is an apocalyptic number.

64775507408662 is a deficient number, since it is larger than the sum of its proper divisors (32387753704334).

64775507408662 is a wasteful number, since it uses less digits than its factorization.

64775507408662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32387753704333.

The product of its (nonzero) digits is 474163200, while the sum is 67.

The spelling of 64775507408662 in words is "sixty-four trillion, seven hundred seventy-five billion, five hundred seven million, four hundred eight thousand, six hundred sixty-two".