40155201044 has 12 divisors (see below), whose sum is σ = 80310402144. Its totient is φ = 17209371864.

The previous prime is 40155201041. The next prime is 40155201083. The reversal of 40155201044 is 44010255104.

40155201044 is an admirable number.

It is a super-2 number, since 2×40155201044² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 717057134 + ... + 717057189.

It is an arithmetic number, because the mean of its divisors is an integer number (6692533512).

Almost surely, 2^40155201044 is an apocalyptic number.

It is an amenable number.

40155201044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40155201044 is a wasteful number, since it uses less digits than its factorization.

40155201044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434114334 (or 1434114332 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 40155201044 its reverse (44010255104), we get a palindrome (84165456148).

The spelling of 40155201044 in words is "forty billion, one hundred fifty-five million, two hundred one thousand, forty-four".