1631616493941 has 24 divisors (see below), whose sum is σ = 2706997155200. Its totient is φ = 927667087776.

The previous prime is 1631616493931. The next prime is 1631616493979. The reversal of 1631616493941 is 1493946161361.

1631616493941 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 61 + 6 + 493 + 94 + 1 = 666.

It is not a de Polignac number, because 1631616493941 - 2⁶ = 1631616493877 is a prime.

It is a super-2 number, since 2×1631616493941² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1631616493931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65059510 + ... + 65084583.

Almost surely, 2^{1631616493941} is an apocalyptic number.

It is an amenable number.

1631616493941 is a deficient number, since it is larger than the sum of its proper divisors (1075380661259).

1631616493941 is a wasteful number, since it uses less digits than its factorization.

1631616493941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130144305 (or 130144302 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The spelling of 1631616493941 in words is "one trillion, six hundred thirty-one billion, six hundred sixteen million, four hundred ninety-three thousand, nine hundred forty-one".