64736068551 has 24 divisors (see below), whose sum is σ = 108428460672. Its totient is φ = 33629125200.

The previous prime is 64736068531. The next prime is 64736068601. The reversal of 64736068551 is 15586063746.

It is not a de Polignac number, because 64736068551 - 2⁶ = 64736068487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64736068494 and 64736068503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64736068511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12735765 + ... + 12740846.

It is an arithmetic number, because the mean of its divisors is an integer number (4517852528).

Almost surely, 2^64736068551 is an apocalyptic number.

64736068551 is a deficient number, since it is larger than the sum of its proper divisors (43692392121).

64736068551 is a wasteful number, since it uses less digits than its factorization.

64736068551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25476643 (or 25476632 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 64736068551 in words is "sixty-four billion, seven hundred thirty-six million, sixty-eight thousand, five hundred fifty-one".