650561016455 has 16 divisors (see below), whose sum is σ = 930989182464. Its totient is φ = 426703374240.

The previous prime is 650561016437. The next prime is 650561016499. The reversal of 650561016455 is 554610165056.

It is a happy number.

It is not a de Polignac number, because 650561016455 - 2¹⁴ = 650561000071 is a prime.

It is a super-2 number, since 2×650561016455² (a number of 24 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 404074361 + ... + 404075970.

It is an arithmetic number, because the mean of its divisors is an integer number (58186823904).

Almost surely, 2^650561016455 is an apocalyptic number.

650561016455 is a deficient number, since it is larger than the sum of its proper divisors (280428166009).

650561016455 is a wasteful number, since it uses less digits than its factorization.

650561016455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808150366.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 650561016455 in words is "six hundred fifty billion, five hundred sixty-one million, sixteen thousand, four hundred fifty-five".