1366353955950 has 48 divisors (see below), whose sum is σ = 3388944807936. Its totient is φ = 364319442400.

The previous prime is 1366353955943. The next prime is 1366353955961. The reversal of 1366353955950 is 595593536631.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 808909 + ... + 1840391.

It is an arithmetic number, because the mean of its divisors is an integer number (70603016832).

Almost surely, 2^{1366353955950} is an apocalyptic number.

1366353955950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1366353955950 is an abundant number, since it is smaller than the sum of its proper divisors (2022590851986).

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

1366353955950 is a wasteful number, since it uses less digits than its factorization.

1366353955950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040329 (or 1040324 counting only the distinct ones).

The product of its (nonzero) digits is 49207500, while the sum is 60.

The spelling of 1366353955950 in words is "one trillion, three hundred sixty-six billion, three hundred fifty-three million, nine hundred fifty-five thousand, nine hundred fifty".