132720471639 has 96 divisors (see below), whose sum is σ = 244850112000. Its totient is φ = 67439941632.

The previous prime is 132720471619. The next prime is 132720471661. The reversal of 132720471639 is 936174027231.

132720471639 is a `hidden beast` number, since 1 + 3 + 2 + 7 + 2 + 0 + 4 + 7 + 1 + 639 = 666.

It is not a de Polignac number, because 132720471639 - 2¹¹ = 132720469591 is a prime.

It is a super-2 number, since 2×132720471639² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 132720471594 and 132720471603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132720471619) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7703667 + ... + 7720875.

It is an arithmetic number, because the mean of its divisors is an integer number (2550522000).

Almost surely, 2^132720471639 is an apocalyptic number.

132720471639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

132720471639 is a deficient number, since it is larger than the sum of its proper divisors (112129640361).

132720471639 is a wasteful number, since it uses less digits than its factorization.

132720471639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17637 (or 17634 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 132720471639 in words is "one hundred thirty-two billion, seven hundred twenty million, four hundred seventy-one thousand, six hundred thirty-nine".