651340355 has 4 divisors (see below), whose sum is σ = 781608432. Its totient is φ = 521072280.

The previous prime is 651340343. The next prime is 651340441. The reversal of 651340355 is 553043156.

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

It is not a de Polignac number, because 651340355 - 2¹⁰ = 651339331 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65134031 + ... + 65134040.

It is an arithmetic number, because the mean of its divisors is an integer number (195402108).

Almost surely, 2^651340355 is an apocalyptic number.

651340355 is a deficient number, since it is larger than the sum of its proper divisors (130268077).

651340355 is a wasteful number, since it uses less digits than its factorization.

651340355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130268076.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 651340355 is about 25521.3705548899. The cubic root of 651340355 is about 866.8341159848.

The spelling of 651340355 in words is "six hundred fifty-one million, three hundred forty thousand, three hundred fifty-five".