540646451553 has 16 divisors (see below), whose sum is σ = 776767199040. Its totient is φ = 332510789184.

The previous prime is 540646451459. The next prime is 540646451591. The reversal of 540646451553 is 355154646045.

It is a happy number.

It is not a de Polignac number, because 540646451553 - 2⁸ = 540646451297 is a prime.

It is a super-2 number, since 2×540646451553² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540646451053) 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, 3989151 + ... + 4122452.

It is an arithmetic number, because the mean of its divisors is an integer number (48547949940).

Almost surely, 2^540646451553 is an apocalyptic number.

It is an amenable number.

540646451553 is a deficient number, since it is larger than the sum of its proper divisors (236120747487).

540646451553 is a wasteful number, since it uses less digits than its factorization.

540646451553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8113328.

The product of its (nonzero) digits is 4320000, while the sum is 48.

The spelling of 540646451553 in words is "five hundred forty billion, six hundred forty-six million, four hundred fifty-one thousand, five hundred fifty-three".