40136877648065 has 32 divisors (see below), whose sum is σ = 55797686870400. Its totient is φ = 27409389880320.

The previous prime is 40136877648017. The next prime is 40136877648067. The reversal of 40136877648065 is 56084677863104.

It is a de Polignac number, because none of the positive numbers 2^k-40136877648065 is a prime.

It is a super-2 number, since 2×40136877648065² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40136877647992 and 40136877648010.

It is not an unprimeable number, because it can be changed into a prime (40136877648067) 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, 169831010 + ... + 170067179.

It is an arithmetic number, because the mean of its divisors is an integer number (1743677714700).

Almost surely, 2^{40136877648065} is an apocalyptic number.

It is an amenable number.

40136877648065 is a deficient number, since it is larger than the sum of its proper divisors (15660809222335).

40136877648065 is a wasteful number, since it uses less digits than its factorization.

40136877648065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339898337.

The product of its (nonzero) digits is 162570240, while the sum is 65.

The spelling of 40136877648065 in words is "forty trillion, one hundred thirty-six billion, eight hundred seventy-seven million, six hundred forty-eight thousand, sixty-five".