1361664507 has 32 divisors (see below), whose sum is σ = 2187025920. Its totient is φ = 736162560.

The previous prime is 1361664503. The next prime is 1361664511. The reversal of 1361664507 is 7054661631.

It is an interprime number because it is at equal distance from previous prime (1361664503) and next prime (1361664511).

It is not a de Polignac number, because 1361664507 - 2² = 1361664503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1361664503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 378457 + ... + 382037.

It is an arithmetic number, because the mean of its divisors is an integer number (68344560).

Almost surely, 2^1361664507 is an apocalyptic number.

1361664507 is a deficient number, since it is larger than the sum of its proper divisors (825361413).

1361664507 is a wasteful number, since it uses less digits than its factorization.

1361664507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1361664507 is about 36900.7385698444. The cubic root of 1361664507 is about 1108.3834670723.

The spelling of 1361664507 in words is "one billion, three hundred sixty-one million, six hundred sixty-four thousand, five hundred seven".