101401645637 has 8 divisors (see below), whose sum is σ = 105848766720. Its totient is φ = 97028030880.

The previous prime is 101401645633. The next prime is 101401645649. The reversal of 101401645637 is 736546104101.

It is a happy number.

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

It is not a de Polignac number, because 101401645637 - 2² = 101401645633 is a prime.

It is a super-2 number, since 2×101401645637² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101401645637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101401645633) 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, 18373763 + ... + 18379280.

It is an arithmetic number, because the mean of its divisors is an integer number (13231095840).

Almost surely, 2^101401645637 is an apocalyptic number.

It is an amenable number.

101401645637 is a deficient number, since it is larger than the sum of its proper divisors (4447121083).

101401645637 is an equidigital number, since it uses as much as digits as its factorization.

101401645637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36753163.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 101401645637 its reverse (736546104101), we get a palindrome (837947749738).

The spelling of 101401645637 in words is "one hundred one billion, four hundred one million, six hundred forty-five thousand, six hundred thirty-seven".