651461662 has 4 divisors (see below), whose sum is σ = 977192496. Its totient is φ = 325730830.

The previous prime is 651461633. The next prime is 651461663. The reversal of 651461662 is 266164156.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651461663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162865414 + ... + 162865417.

It is an arithmetic number, because the mean of its divisors is an integer number (244298124).

Almost surely, 2^651461662 is an apocalyptic number.

651461662 is a deficient number, since it is larger than the sum of its proper divisors (325730834).

651461662 is a wasteful number, since it uses less digits than its factorization.

651461662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325730833.

The product of its digits is 51840, while the sum is 37.

The square root of 651461662 is about 25523.7470211566. The cubic root of 651461662 is about 866.8879263151.

The spelling of 651461662 in words is "six hundred fifty-one million, four hundred sixty-one thousand, six hundred sixty-two".