40157581662 has 48 divisors (see below), whose sum is σ = 100501335792. Its totient is φ = 11453141760.

The previous prime is 40157581649. The next prime is 40157581703. The reversal of 40157581662 is 26618575104.

40157581662 is a `hidden beast` number, since 4 + 0 + 1 + 5 + 7 + 581 + 6 + 62 = 666.

It is a super-2 number, since 2×40157581662² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5961813 + ... + 5968544.

It is an arithmetic number, because the mean of its divisors is an integer number (2093777829).

Almost surely, 2^40157581662 is an apocalyptic number.

40157581662 is an abundant number, since it is smaller than the sum of its proper divisors (60343754130).

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

40157581662 is a wasteful number, since it uses less digits than its factorization.

40157581662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11930393 (or 11930390 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 40157581662 in words is "forty billion, one hundred fifty-seven million, five hundred eighty-one thousand, six hundred sixty-two".