1616501144640 has 56 divisors (see below), whose sum is σ = 5132391137280. Its totient is φ = 431066971648.

The previous prime is 1616501144623. The next prime is 1616501144653. The reversal of 1616501144640 is 464411056161.

It is a super-2 number, since 2×1616501144640² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841926720 + ... + 841928639.

Almost surely, 2^{1616501144640} is an apocalyptic number.

1616501144640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616501144640 is an abundant number, since it is smaller than the sum of its proper divisors (3515889992640).

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

1616501144640 is a wasteful number, since it uses less digits than its factorization.

1616501144640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683855379 (or 1683855369 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 1616501144640 in words is "one trillion, six hundred sixteen billion, five hundred one million, one hundred forty-four thousand, six hundred forty".