1613640154131 has 64 divisors (see below), whose sum is σ = 2416116326400. Its totient is φ = 1064342332800.

The previous prime is 1613640154117. The next prime is 1613640154153. The reversal of 1613640154131 is 1314510463161.

1613640154131 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 640 + 1 + 5 + 4 + 1 + 3 + 1 = 666.

It is not a de Polignac number, because 1613640154131 - 2⁶ = 1613640154067 is a prime.

It is a super-2 number, since 2×1613640154131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1613640154631) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1168457061 + ... + 1168458441.

It is an arithmetic number, because the mean of its divisors is an integer number (37751817600).

Almost surely, 2^{1613640154131} is an apocalyptic number.

1613640154131 is a deficient number, since it is larger than the sum of its proper divisors (802476172269).

1613640154131 is a wasteful number, since it uses less digits than its factorization.

1613640154131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577 (or 2571 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 1613640154131 in words is "one trillion, six hundred thirteen billion, six hundred forty million, one hundred fifty-four thousand, one hundred thirty-one".