1625646653432 has 16 divisors (see below), whose sum is σ = 3048694376640. Its totient is φ = 812661486336.

The previous prime is 1625646653413. The next prime is 1625646653473. The reversal of 1625646653432 is 2343566465261.

It is a super-2 number, since 2×1625646653432² (a number of 25 digits) contains 22 as substring.

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, 20187353 + ... + 20267720.

It is an arithmetic number, because the mean of its divisors is an integer number (190543398540).

Almost surely, 2^{1625646653432} is an apocalyptic number.

It is an amenable number.

1625646653432 is a deficient number, since it is larger than the sum of its proper divisors (1423047723208).

1625646653432 is a wasteful number, since it uses less digits than its factorization.

1625646653432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40460102 (or 40460098 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 53.

The spelling of 1625646653432 in words is "one trillion, six hundred twenty-five billion, six hundred forty-six million, six hundred fifty-three thousand, four hundred thirty-two".