540001401646 has 32 divisors (see below), whose sum is σ = 927290695680. Its totient is φ = 231035970816.

The previous prime is 540001401587. The next prime is 540001401647. The reversal of 540001401646 is 646104100045.

It is a super-2 number, since 2×540001401646² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540001401647) 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, 24358315 + ... + 24380473.

It is an arithmetic number, because the mean of its divisors is an integer number (28977834240).

Almost surely, 2^540001401646 is an apocalyptic number.

540001401646 is a deficient number, since it is larger than the sum of its proper divisors (387289294034).

540001401646 is a wasteful number, since it uses less digits than its factorization.

540001401646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25048.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 540001401646 in words is "five hundred forty billion, one million, four hundred one thousand, six hundred forty-six".