651120622 has 4 divisors (see below), whose sum is σ = 976680936. Its totient is φ = 325560310.

The previous prime is 651120611. The next prime is 651120643. The reversal of 651120622 is 226021156.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162780154 + ... + 162780157.

It is an arithmetic number, because the mean of its divisors is an integer number (244170234).

Almost surely, 2^651120622 is an apocalyptic number.

651120622 is a deficient number, since it is larger than the sum of its proper divisors (325560314).

651120622 is a wasteful number, since it uses less digits than its factorization.

651120622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325560313.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 651120622 is about 25517.0653093180. The cubic root of 651120622 is about 866.7366280472.

Adding to 651120622 its reverse (226021156), we get a palindrome (877141778).

The spelling of 651120622 in words is "six hundred fifty-one million, one hundred twenty thousand, six hundred twenty-two".