102516454641621 has 8 divisors (see below), whose sum is σ = 136780528593024. Its totient is φ = 68298341892320.

The previous prime is 102516454641619. The next prime is 102516454641691. The reversal of 102516454641621 is 126146454615201.

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 102516454641621 - 2¹ = 102516454641619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102516454641691) 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, 11490295320 + ... + 11490304241.

It is an arithmetic number, because the mean of its divisors is an integer number (17097566074128).

Almost surely, 2^{102516454641621} is an apocalyptic number.

It is an amenable number.

102516454641621 is a deficient number, since it is larger than the sum of its proper divisors (34264073951403).

102516454641621 is a wasteful number, since it uses less digits than its factorization.

102516454641621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22980601051.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 102516454641621 in words is "one hundred two trillion, five hundred sixteen billion, four hundred fifty-four million, six hundred forty-one thousand, six hundred twenty-one".