1616591663040 has 112 divisors (see below), whose sum is σ = 5162347722528. Its totient is φ = 428599209984.

The previous prime is 1616591663009. The next prime is 1616591663077. The reversal of 1616591663040 is 403661956161.

It is a super-2 number, since 2×1616591663040² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 4700827 + ... + 5032986.

Almost surely, 2^{1616591663040} is an apocalyptic number.

1616591663040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616591663040 is an abundant number, since it is smaller than the sum of its proper divisors (3545756059488).

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

1616591663040 is a wasteful number, since it uses less digits than its factorization.

1616591663040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9734006 (or 9733996 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 1616591663040 in words is "one trillion, six hundred sixteen billion, five hundred ninety-one million, six hundred sixty-three thousand, forty".