662740651 has 8 divisors (see below), whose sum is σ = 670272624. Its totient is φ = 655248000.

The previous prime is 662740643. The next prime is 662740667. The reversal of 662740651 is 156047266.

It is a happy number.

662740651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 662740651 - 2³ = 662740643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 662740651.

It is not an unprimeable number, because it can be changed into a prime (662740621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24751 + ... + 44023.

It is an arithmetic number, because the mean of its divisors is an integer number (83784078).

Almost surely, 2^662740651 is an apocalyptic number.

662740651 is a deficient number, since it is larger than the sum of its proper divisors (7531973).

662740651 is a wasteful number, since it uses less digits than its factorization.

662740651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19661.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 662740651 is about 25743.7497462976. The cubic root of 662740651 is about 871.8622421295.

It can be divided in two parts, 6627 and 40651, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 662740651 in words is "six hundred sixty-two million, seven hundred forty thousand, six hundred fifty-one".