1370665566640 has 40 divisors (see below), whose sum is σ = 3187307436768. Its totient is φ = 548178485760.

The previous prime is 1370665566629. The next prime is 1370665566701. The reversal of 1370665566640 is 466655660731.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866781 + ... + 1868860.

Almost surely, 2^{1370665566640} is an apocalyptic number.

1370665566640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1370665566640 is an abundant number, since it is smaller than the sum of its proper divisors (1816641870128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1370665566640 is a wasteful number, since it uses less digits than its factorization.

1370665566640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741917 (or 2741911 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 55.

The spelling of 1370665566640 in words is "one trillion, three hundred seventy billion, six hundred sixty-five million, five hundred sixty-six thousand, six hundred forty".