1616961697760 has 48 divisors (see below), whose sum is σ = 3857894544672. Its totient is φ = 640380864000.

The previous prime is 1616961697751. The next prime is 1616961697763. The reversal of 1616961697760 is 677961696161.

It is a super-2 number, since 2×1616961697760² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616961697763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50013596 + ... + 50045915.

It is an arithmetic number, because the mean of its divisors is an integer number (80372803014).

Almost surely, 2^{1616961697760} is an apocalyptic number.

1616961697760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616961697760 is an abundant number, since it is smaller than the sum of its proper divisors (2240932846912).

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

1616961697760 is a wasteful number, since it uses less digits than its factorization.

1616961697760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100059627 (or 100059619 counting only the distinct ones).

The product of its (nonzero) digits is 30862944, while the sum is 65.

The spelling of 1616961697760 in words is "one trillion, six hundred sixteen billion, nine hundred sixty-one million, six hundred ninety-seven thousand, seven hundred sixty".