40155201042 has 32 divisors (see below), whose sum is σ = 87630577920. Its totient is φ = 12165571920.

The previous prime is 40155201041. The next prime is 40155201083. The reversal of 40155201042 is 24010255104.

It is a super-2 number, since 2×40155201042² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40155201041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247309 + ... + 376127.

It is an arithmetic number, because the mean of its divisors is an integer number (2738455560).

Almost surely, 2^40155201042 is an apocalyptic number.

40155201042 is an abundant number, since it is smaller than the sum of its proper divisors (47475376878).

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

40155201042 is a wasteful number, since it uses less digits than its factorization.

40155201042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133558.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 40155201042 its reverse (24010255104), we get a palindrome (64165456146).

The spelling of 40155201042 in words is "forty billion, one hundred fifty-five million, two hundred one thousand, forty-two".