1616991657463 has 32 divisors (see below), whose sum is σ = 2096469616640. Its totient is φ = 1211127240960.

The previous prime is 1616991657431. The next prime is 1616991657469. The reversal of 1616991657463 is 3647561996161.

It is not a de Polignac number, because 1616991657463 - 2⁵ = 1616991657431 is a prime.

It is a super-2 number, since 2×1616991657463² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616991657395 and 1616991657404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616991657469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1942003 + ... + 2646763.

It is an arithmetic number, because the mean of its divisors is an integer number (65514675520).

Almost surely, 2^{1616991657463} is an apocalyptic number.

1616991657463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1616991657463 is a deficient number, since it is larger than the sum of its proper divisors (479477959177).

1616991657463 is a wasteful number, since it uses less digits than its factorization.

1616991657463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706127.

The product of its digits is 44089920, while the sum is 64.

The spelling of 1616991657463 in words is "one trillion, six hundred sixteen billion, nine hundred ninety-one million, six hundred fifty-seven thousand, four hundred sixty-three".