3650161521261 has 8 divisors (see below), whose sum is σ = 4867443864000. Its totient is φ = 2433160096352.

The previous prime is 3650161521173. The next prime is 3650161521269. The reversal of 3650161521261 is 1621251610563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3650161521261 - 2¹⁴ = 3650161504877 is a prime.

It is a super-3 number, since 3×3650161521261³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3650161521269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70199136 + ... + 70251113.

It is an arithmetic number, because the mean of its divisors is an integer number (608430483000).

Almost surely, 2^{3650161521261} is an apocalyptic number.

It is an amenable number.

3650161521261 is a deficient number, since it is larger than the sum of its proper divisors (1217282342739).

3650161521261 is a wasteful number, since it uses less digits than its factorization.

3650161521261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140458915.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 3650161521261 in words is "three trillion, six hundred fifty billion, one hundred sixty-one million, five hundred twenty-one thousand, two hundred sixty-one".