766172020 has 48 divisors (see below), whose sum is σ = 1639330560. Its totient is φ = 300733056.

The previous prime is 766171999. The next prime is 766172023. The reversal of 766172020 is 20271667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766172023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271939 + ... + 274741.

It is an arithmetic number, because the mean of its divisors is an integer number (34152720).

Almost surely, 2^766172020 is an apocalyptic number.

It is an amenable number.

766172020 is an abundant number, since it is smaller than the sum of its proper divisors (873158540).

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

766172020 is a wasteful number, since it uses less digits than its factorization.

766172020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064 (or 3062 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 766172020 is about 27679.8124993649. The cubic root of 766172020 is about 915.0442492063.

The spelling of 766172020 in words is "seven hundred sixty-six million, one hundred seventy-two thousand, twenty".