101620611425 has 12 divisors (see below), whose sum is σ = 133421885676. Its totient is φ = 76514342400.

The previous prime is 101620611403. The next prime is 101620611439. The reversal of 101620611425 is 524116026101.

It can be written as a sum of positive squares in 6 ways, for example, as 11257846609 + 90362764816 = 106103^2 + 300604^2 .

It is not a de Polignac number, because 101620611425 - 2¹² = 101620607329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119553236 + ... + 119554085.

It is an arithmetic number, because the mean of its divisors is an integer number (11118490473).

Almost surely, 2^101620611425 is an apocalyptic number.

It is an amenable number.

101620611425 is a deficient number, since it is larger than the sum of its proper divisors (31801274251).

101620611425 is a wasteful number, since it uses less digits than its factorization.

101620611425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239107348 (or 239107343 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 101620611425 its reverse (524116026101), we get a palindrome (625736637526).

The spelling of 101620611425 in words is "one hundred one billion, six hundred twenty million, six hundred eleven thousand, four hundred twenty-five".