101401645636 has 6 divisors (see below), whose sum is σ = 177452879870. Its totient is φ = 50700822816.

The previous prime is 101401645633. The next prime is 101401645649. The reversal of 101401645636 is 636546104101.

It can be written as a sum of positive squares in only one way, i.e., 85699049536 + 15702596100 = 292744^2 + 125310^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101401645595 and 101401645604.

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 as a sum of consecutive naturals, namely, 12675205701 + ... + 12675205708.

Almost surely, 2^101401645636 is an apocalyptic number.

It is an amenable number.

101401645636 is a deficient number, since it is larger than the sum of its proper divisors (76051234234).

101401645636 is a wasteful number, since it uses less digits than its factorization.

101401645636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25350411413 (or 25350411411 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 101401645636 its reverse (636546104101), we get a palindrome (737947749737).

The spelling of 101401645636 in words is "one hundred one billion, four hundred one million, six hundred forty-five thousand, six hundred thirty-six".