1366906145 has 24 divisors (see below), whose sum is σ = 1844924928. Its totient is φ = 970976160.

The previous prime is 1366906139. The next prime is 1366906171. The reversal of 1366906145 is 5416096631.

It is not a de Polignac number, because 1366906145 - 2¹⁴ = 1366889761 is a prime.

It is a super-2 number, since 2×1366906145² = 3736864818477522050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257 + ... + 52286.

It is an arithmetic number, because the mean of its divisors is an integer number (76871872).

Almost surely, 2^1366906145 is an apocalyptic number.

It is an amenable number.

1366906145 is a deficient number, since it is larger than the sum of its proper divisors (478018783).

1366906145 is a wasteful number, since it uses less digits than its factorization.

1366906145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52613 (or 52602 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 1366906145 is about 36971.6938346081. The cubic root of 1366906145 is about 1109.8038624848.

The spelling of 1366906145 in words is "one billion, three hundred sixty-six million, nine hundred six thousand, one hundred forty-five".