1351664699 has 8 divisors (see below), whose sum is σ = 1685192448. Its totient is φ = 1053245160.

The previous prime is 1351664663. The next prime is 1351664737. The reversal of 1351664699 is 9964661531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1351664699 - 2⁸ = 1351664443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351664599) 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, 8776967 + ... + 8777120.

It is an arithmetic number, because the mean of its divisors is an integer number (210649056).

Almost surely, 2^1351664699 is an apocalyptic number.

1351664699 is a deficient number, since it is larger than the sum of its proper divisors (333527749).

1351664699 is a wasteful number, since it uses less digits than its factorization.

1351664699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17554105.

The product of its digits is 1049760, while the sum is 50.

The square root of 1351664699 is about 36764.9928464565. The cubic root of 1351664699 is about 1105.6635447380.

The spelling of 1351664699 in words is "one billion, three hundred fifty-one million, six hundred sixty-four thousand, six hundred ninety-nine".