40164242546 has 4 divisors (see below), whose sum is σ = 60246363822. Its totient is φ = 20082121272.

The previous prime is 40164242533. The next prime is 40164242561. The reversal of 40164242546 is 64524246104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21075780625 + 19088461921 = 145175^2 + 138161^2 .

It is a super-2 number, since 2×40164242546² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041060635 + ... + 10041060638.

Almost surely, 2^40164242546 is an apocalyptic number.

40164242546 is a deficient number, since it is larger than the sum of its proper divisors (20082121276).

40164242546 is a wasteful number, since it uses less digits than its factorization.

40164242546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20082121275.

The product of its (nonzero) digits is 184320, while the sum is 38.

The spelling of 40164242546 in words is "forty billion, one hundred sixty-four million, two hundred forty-two thousand, five hundred forty-six".