70722066 has 48 divisors (see below), whose sum is σ = 151205184. Its totient is φ = 22046688.

The previous prime is 70722019. The next prime is 70722083. The reversal of 70722066 is 66022707.

It is a super-2 number, since 2×70722066² = 10003221238616712, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222940 + ... + 223256.

It is an arithmetic number, because the mean of its divisors is an integer number (3150108).

Almost surely, 2^70722066 is an apocalyptic number.

70722066 is an abundant number, since it is smaller than the sum of its proper divisors (80483118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70722066 is a wasteful number, since it uses less digits than its factorization.

70722066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 70722066 is about 8409.6412527527. The cubic root of 70722066 is about 413.5407519198.

The spelling of 70722066 in words is "seventy million, seven hundred twenty-two thousand, sixty-six".