64111333125406 has 32 divisors (see below), whose sum is σ = 118638234800640. Its totient is φ = 25375400213856.

The previous prime is 64111333125401. The next prime is 64111333125451. The reversal of 64111333125406 is 60452133311146.

It is a super-2 number, since 2×64111333125406² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64111333125401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3432809956 + ... + 3432828631.

It is an arithmetic number, because the mean of its divisors is an integer number (3707444837520).

Almost surely, 2^{64111333125406} is an apocalyptic number.

64111333125406 is a deficient number, since it is larger than the sum of its proper divisors (54526901675234).

64111333125406 is a wasteful number, since it uses less digits than its factorization.

64111333125406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6865638648.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 64111333125406 in words is "sixty-four trillion, one hundred eleven billion, three hundred thirty-three million, one hundred twenty-five thousand, four hundred six".