651153056605 has 32 divisors (see below), whose sum is σ = 797993399808. Its totient is φ = 509968166400.

The previous prime is 651153056563. The next prime is 651153056611. The reversal of 651153056605 is 506650351156.

It is a happy number.

It is not a de Polignac number, because 651153056605 - 2¹¹ = 651153054557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30980550 + ... + 31001560.

It is an arithmetic number, because the mean of its divisors is an integer number (24937293744).

Almost surely, 2^651153056605 is an apocalyptic number.

It is an amenable number.

651153056605 is a deficient number, since it is larger than the sum of its proper divisors (146840343203).

651153056605 is a wasteful number, since it uses less digits than its factorization.

651153056605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21717.

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 651153056605 in words is "six hundred fifty-one billion, one hundred fifty-three million, fifty-six thousand, six hundred five".