55121001464 has 16 divisors (see below), whose sum is σ = 103359628800. Its totient is φ = 27558433792.

The previous prime is 55121001431. The next prime is 55121001473. The reversal of 55121001464 is 46410012155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141944 + ... + 361095.

It is an arithmetic number, because the mean of its divisors is an integer number (6459976800).

Almost surely, 2^55121001464 is an apocalyptic number.

It is an amenable number.

55121001464 is a deficient number, since it is larger than the sum of its proper divisors (48238627336).

55121001464 is a wasteful number, since it uses less digits than its factorization.

55121001464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516742 (or 516738 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 55121001464 in words is "fifty-five billion, one hundred twenty-one million, one thousand, four hundred sixty-four".