420069031066 has 4 divisors (see below), whose sum is σ = 630103546602. Its totient is φ = 210034515532.

The previous prime is 420069031033. The next prime is 420069031093. The reversal of 420069031066 is 660130960024.

It is a happy number.

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., 305564622841 + 114504408225 = 552779^2 + 338385^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105017257765 + ... + 105017257768.

Almost surely, 2^420069031066 is an apocalyptic number.

420069031066 is a deficient number, since it is larger than the sum of its proper divisors (210034515536).

420069031066 is a wasteful number, since it uses less digits than its factorization.

420069031066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210034515535.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 420069031066 in words is "four hundred twenty billion, sixty-nine million, thirty-one thousand, sixty-six".