20135105107672 has 32 divisors (see below), whose sum is σ = 39883806039600. Its totient is φ = 9503249284224.

The previous prime is 20135105107651. The next prime is 20135105107681. The reversal of 20135105107672 is 27670150153102.

It is a super-3 number, since 3×20135105107672³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239069443 + ... + 239153650.

Almost surely, 2^{20135105107672} is an apocalyptic number.

It is an amenable number.

20135105107672 is a deficient number, since it is larger than the sum of its proper divisors (19748700931928).

20135105107672 is a wasteful number, since it uses less digits than its factorization.

20135105107672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478223395 (or 478223391 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 20135105107672 in words is "twenty trillion, one hundred thirty-five billion, one hundred five million, one hundred seven thousand, six hundred seventy-two".