40157955690 has 16 divisors (see below), whose sum is σ = 96379093728. Its totient is φ = 10708788176.

The previous prime is 40157955689. The next prime is 40157955701. The reversal of 40157955690 is 9655975104.

40157955690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40157955690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669299232 + ... + 669299291.

It is an arithmetic number, because the mean of its divisors is an integer number (6023693358).

Almost surely, 2^40157955690 is an apocalyptic number.

40157955690 is an abundant number, since it is smaller than the sum of its proper divisors (56221138038).

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

40157955690 is a wasteful number, since it uses less digits than its factorization.

40157955690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338598533.

The product of its (nonzero) digits is 1701000, while the sum is 51.

The spelling of 40157955690 in words is "forty billion, one hundred fifty-seven million, nine hundred fifty-five thousand, six hundred ninety".