650561651401 has 8 divisors (see below), whose sum is σ = 651244104000. Its totient is φ = 649879533072.

The previous prime is 650561651381. The next prime is 650561651419. The reversal of 650561651401 is 104156165056.

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 650561651401 - 2⁷ = 650561651273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650561651491) 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, 3910351 + ... + 4073323.

It is an arithmetic number, because the mean of its divisors is an integer number (81405513000).

Almost surely, 2^650561651401 is an apocalyptic number.

It is an amenable number.

650561651401 is a deficient number, since it is larger than the sum of its proper divisors (682452599).

650561651401 is a wasteful number, since it uses less digits than its factorization.

650561651401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167135.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 650561651401 in words is "six hundred fifty billion, five hundred sixty-one million, six hundred fifty-one thousand, four hundred one".