20755514671 has 8 divisors (see below), whose sum is σ = 21850732800. Its totient is φ = 19660578840.

The previous prime is 20755514657. The next prime is 20755514699. The reversal of 20755514671 is 17641555702.

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

It is a cyclic number.

It is not a de Polignac number, because 20755514671 - 2⁹ = 20755514159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20755584671) 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, 89706 + ... + 222616.

It is an arithmetic number, because the mean of its divisors is an integer number (2731341600).

Almost surely, 2^20755514671 is an apocalyptic number.

20755514671 is a deficient number, since it is larger than the sum of its proper divisors (1095218129).

20755514671 is a wasteful number, since it uses less digits than its factorization.

20755514671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141149.

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 20755514671 in words is "twenty billion, seven hundred fifty-five million, five hundred fourteen thousand, six hundred seventy-one".