51664125470 has 16 divisors (see below), whose sum is σ = 95158110960. Its totient is φ = 20185053504.

The previous prime is 51664125449. The next prime is 51664125493. The reversal of 51664125470 is 7452146615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60074135 + ... + 60074994.

It is an arithmetic number, because the mean of its divisors is an integer number (5947381935).

Almost surely, 2^51664125470 is an apocalyptic number.

51664125470 is a deficient number, since it is larger than the sum of its proper divisors (43493985490).

51664125470 is a wasteful number, since it uses less digits than its factorization.

51664125470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120149179.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 51664125470 in words is "fifty-one billion, six hundred sixty-four million, one hundred twenty-five thousand, four hundred seventy".