40420162564 has 6 divisors (see below), whose sum is σ = 70735284494. Its totient is φ = 20210081280.

The previous prime is 40420162547. The next prime is 40420162577. The reversal of 40420162564 is 46526102404.

It can be written as a sum of positive squares in only one way, i.e., 31455860164 + 8964302400 = 177358^2 + 94680^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052520317 + ... + 5052520324.

Almost surely, 2^40420162564 is an apocalyptic number.

It is an amenable number.

40420162564 is a deficient number, since it is larger than the sum of its proper divisors (30315121930).

40420162564 is a wasteful number, since it uses less digits than its factorization.

40420162564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10105040645 (or 10105040643 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 40420162564 its reverse (46526102404), we get a palindrome (86946264968).

The spelling of 40420162564 in words is "forty billion, four hundred twenty million, one hundred sixty-two thousand, five hundred sixty-four".