402024404066 has 4 divisors (see below), whose sum is σ = 603036606102. Its totient is φ = 201012202032.

The previous prime is 402024404063. The next prime is 402024404071. The reversal of 402024404066 is 660404420204.

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., 352217323441 + 49807080625 = 593479^2 + 223175^2 .

It is not an unprimeable number, because it can be changed into a prime (402024404063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506101015 + ... + 100506101018.

Almost surely, 2^402024404066 is an apocalyptic number.

402024404066 is a deficient number, since it is larger than the sum of its proper divisors (201012202036).

402024404066 is a wasteful number, since it uses less digits than its factorization.

402024404066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201012202035.

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 402024404066 in words is "four hundred two billion, twenty-four million, four hundred four thousand, sixty-six".