64147556126 has 64 divisors (see below), whose sum is σ = 103921574400. Its totient is φ = 29643196800.

The previous prime is 64147556113. The next prime is 64147556189. The reversal of 64147556126 is 62165574146.

It is a super-2 number, since 2×64147556126² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20164256 + ... + 20167436.

It is an arithmetic number, because the mean of its divisors is an integer number (1623774600).

Almost surely, 2^64147556126 is an apocalyptic number.

64147556126 is a deficient number, since it is larger than the sum of its proper divisors (39774018274).

64147556126 is a wasteful number, since it uses less digits than its factorization.

64147556126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425.

The product of its digits is 1209600, while the sum is 47.

The spelling of 64147556126 in words is "sixty-four billion, one hundred forty-seven million, five hundred fifty-six thousand, one hundred twenty-six".