102061226645 has 16 divisors (see below), whose sum is σ = 139986040320. Its totient is φ = 69976662144.

The previous prime is 102061226611. The next prime is 102061226681. The reversal of 102061226645 is 546622160201.

It is a cyclic number.

It is not a de Polignac number, because 102061226645 - 2²⁸ = 101792791189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141401 + ... + 473409.

It is an arithmetic number, because the mean of its divisors is an integer number (8749127520).

Almost surely, 2^102061226645 is an apocalyptic number.

It is an amenable number.

102061226645 is a deficient number, since it is larger than the sum of its proper divisors (37924813675).

102061226645 is an equidigital number, since it uses as much as digits as its factorization.

102061226645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340804.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 102061226645 its reverse (546622160201), we get a palindrome (648683386846).

The spelling of 102061226645 in words is "one hundred two billion, sixty-one million, two hundred twenty-six thousand, six hundred forty-five".