15146143644 has 12 divisors (see below), whose sum is σ = 35341001864. Its totient is φ = 5048714544.

The previous prime is 15146143631. The next prime is 15146143669. The reversal of 15146143644 is 44634164151.

It is a tau number, because it is divible by the number of its divisors (12).

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, 631089307 + ... + 631089330.

Almost surely, 2^15146143644 is an apocalyptic number.

It is an amenable number.

15146143644 is an abundant number, since it is smaller than the sum of its proper divisors (20194858220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15146143644 is a wasteful number, since it uses less digits than its factorization.

15146143644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262178644 (or 1262178642 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The spelling of 15146143644 in words is "fifteen billion, one hundred forty-six million, one hundred forty-three thousand, six hundred forty-four".