10215621602621 has 8 divisors (see below), whose sum is σ = 10219864498560. Its totient is φ = 10211378962752.

The previous prime is 10215621602611. The next prime is 10215621602633. The reversal of 10215621602621 is 12620612651201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10215621602621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215621602611) 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, 152705246 + ... + 152772128.

It is an arithmetic number, because the mean of its divisors is an integer number (1277483062320).

Almost surely, 2^{10215621602621} is an apocalyptic number.

It is an amenable number.

10215621602621 is a deficient number, since it is larger than the sum of its proper divisors (4242895939).

10215621602621 is an equidigital number, since it uses as much as digits as its factorization.

10215621602621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128035.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 10215621602621 in words is "ten trillion, two hundred fifteen billion, six hundred twenty-one million, six hundred two thousand, six hundred twenty-one".