1365942656925 has 96 divisors (see below), whose sum is σ = 3128462146560. Its totient is φ = 567664459200.

The previous prime is 1365942656899. The next prime is 1365942656929. The reversal of 1365942656925 is 5296562495631.

It is a happy number.

1365942656925 is a `hidden beast` number, since 1 + 3 + 6 + 5 + 9 + 42 + 6 + 569 + 25 = 666.

It is not a de Polignac number, because 1365942656925 - 2⁵ = 1365942656893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365942656929) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13088407 + ... + 13192356.

It is an arithmetic number, because the mean of its divisors is an integer number (32588147360).

Almost surely, 2^{1365942656925} is an apocalyptic number.

1365942656925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1365942656925 is an abundant number, since it is smaller than the sum of its proper divisors (1762519489635).

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

1365942656925 is a wasteful number, since it uses less digits than its factorization.

1365942656925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26280800 (or 26280789 counting only the distinct ones).

The product of its digits is 104976000, while the sum is 63.

The spelling of 1365942656925 in words is "one trillion, three hundred sixty-five billion, nine hundred forty-two million, six hundred fifty-six thousand, nine hundred twenty-five".