10602151621721 has 8 divisors (see below), whose sum is σ = 11566028384064. Its totient is φ = 9638282325520.

The previous prime is 10602151621717. The next prime is 10602151621759. The reversal of 10602151621721 is 12712615120601.

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 10602151621721 - 2² = 10602151621717 is a prime.

It is a super-2 number, since 2×10602151621721² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10602151621771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342511 + ... + 4796523.

It is an arithmetic number, because the mean of its divisors is an integer number (1445753548008).

Almost surely, 2^{10602151621721} is an apocalyptic number.

10602151621721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10602151621721 is a deficient number, since it is larger than the sum of its proper divisors (963876762343).

10602151621721 is a wasteful number, since it uses less digits than its factorization.

10602151621721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733071.

The product of its (nonzero) digits is 10080, while the sum is 35.

The spelling of 10602151621721 in words is "ten trillion, six hundred two billion, one hundred fifty-one million, six hundred twenty-one thousand, seven hundred twenty-one".