1616537226440 has 32 divisors (see below), whose sum is σ = 3644497800000. Its totient is φ = 645319061184.

The previous prime is 1616537226439. The next prime is 1616537226503. The reversal of 1616537226440 is 446227356161.

It is a super-2 number, since 2×1616537226440² (a number of 25 digits) contains 22 as substring.

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, 40474460 + ... + 40514379.

It is an arithmetic number, because the mean of its divisors is an integer number (113890556250).

Almost surely, 2^{1616537226440} is an apocalyptic number.

1616537226440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616537226440 is an abundant number, since it is smaller than the sum of its proper divisors (2027960573560).

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

1616537226440 is a wasteful number, since it uses less digits than its factorization.

1616537226440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80989349 (or 80989345 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 1616537226440 in words is "one trillion, six hundred sixteen billion, five hundred thirty-seven million, two hundred twenty-six thousand, four hundred forty".