3669891164415 has 96 divisors (see below), whose sum is σ = 7343396176896. Its totient is φ = 1660712232960.

The previous prime is 3669891164413. The next prime is 3669891164449. The reversal of 3669891164415 is 5144611989663.

3669891164415 is a `hidden beast` number, since 3 + 6 + 6 + 98 + 91 + 16 + 441 + 5 = 666.

It is a Cunningham number, because it is equal to 1915696²-1.

It is not a de Polignac number, because 3669891164415 - 2¹ = 3669891164413 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 (3669891164413) 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, 86185080 + ... + 86227650.

It is an arithmetic number, because the mean of its divisors is an integer number (76493710176).

Almost surely, 2^{3669891164415} is an apocalyptic number.

3669891164415 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3669891164415 is an abundant number, since it is smaller than the sum of its proper divisors (3673505012481).

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

3669891164415 is a wasteful number, since it uses less digits than its factorization.

3669891164415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45349 (or 45346 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 63.

The spelling of 3669891164415 in words is "three trillion, six hundred sixty-nine billion, eight hundred ninety-one million, one hundred sixty-four thousand, four hundred fifteen".