540006644652 has 48 divisors (see below), whose sum is σ = 1295655685632. Its totient is φ = 174944149120.

The previous prime is 540006644633. The next prime is 540006644657. The reversal of 540006644652 is 256446600045.

It is a super-2 number, since 2×540006644652² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540006644657) 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, 1957248 + ... + 2216039.

It is an arithmetic number, because the mean of its divisors is an integer number (26992826784).

Almost surely, 2^540006644652 is an apocalyptic number.

It is an amenable number.

540006644652 is an abundant number, since it is smaller than the sum of its proper divisors (755649040980).

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

540006644652 is a wasteful number, since it uses less digits than its factorization.

540006644652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4173598 (or 4173596 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 540006644652 in words is "five hundred forty billion, six million, six hundred forty-four thousand, six hundred fifty-two".