1616432123640 has 64 divisors (see below), whose sum is σ = 4849431501600. Its totient is φ = 431036554752.

The previous prime is 1616432123569. The next prime is 1616432123687. The reversal of 1616432123640 is 463212346161.

It is a super-2 number, since 2×1616432123640² (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 15 ways as a sum of consecutive naturals, for example, 4655094 + ... + 4990266.

Almost surely, 2^{1616432123640} is an apocalyptic number.

1616432123640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616432123640 is an abundant number, since it is smaller than the sum of its proper divisors (3232999377960).

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

1616432123640 is a wasteful number, since it uses less digits than its factorization.

1616432123640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375376 (or 375372 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 1616432123640 in words is "one trillion, six hundred sixteen billion, four hundred thirty-two million, one hundred twenty-three thousand, six hundred forty".