1366871470956 has 72 divisors (see below), whose sum is σ = 3550631548464. Its totient is φ = 443047086720.

The previous prime is 1366871470807. The next prime is 1366871470957. The reversal of 1366871470956 is 6590741786631.

1366871470956 is a `hidden beast` number, since 1 + 3 + 6 + 6 + 8 + 71 + 470 + 95 + 6 = 666.

It is a super-2 number, since 2×1366871470956² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1366871470893 and 1366871470902.

It is not an unprimeable number, because it can be changed into a prime (1366871470957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1952011 + ... + 2558141.

It is an arithmetic number, because the mean of its divisors is an integer number (49314327062).

Almost surely, 2^{1366871470956} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366871470956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1775315774232).

1366871470956 is an abundant number, since it is smaller than the sum of its proper divisors (2183760077508).

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

1366871470956 is a wasteful number, since it uses less digits than its factorization.

1366871470956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607871 (or 607866 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 1366871470956 in words is "one trillion, three hundred sixty-six billion, eight hundred seventy-one million, four hundred seventy thousand, nine hundred fifty-six".