72061066 has 72 divisors (see below), whose sum is σ = 141916320. Its totient is φ = 27331920.

The previous prime is 72061061. The next prime is 72061103. The reversal of 72061066 is 66016027.

It is not an unprimeable number, because it can be changed into a prime (72061061) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 699571 + ... + 699673.

It is an arithmetic number, because the mean of its divisors is an integer number (1971060).

Almost surely, 2^72061066 is an apocalyptic number.

72061066 is a deficient number, since it is larger than the sum of its proper divisors (69855254).

72061066 is a wasteful number, since it uses less digits than its factorization.

72061066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 72061066 is about 8488.8789601454. The cubic root of 72061066 is about 416.1343447074.

The spelling of 72061066 in words is "seventy-two million, sixty-one thousand, sixty-six".