20770163654 has 8 divisors (see below), whose sum is σ = 31430955960. Its totient is φ = 10293178336.

The previous prime is 20770163651. The next prime is 20770163683. The reversal of 20770163654 is 45636107702.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20770163651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45951464 + ... + 45951915.

It is an arithmetic number, because the mean of its divisors is an integer number (3928869495).

Almost surely, 2^20770163654 is an apocalyptic number.

20770163654 is a deficient number, since it is larger than the sum of its proper divisors (10660792306).

20770163654 is a wasteful number, since it uses less digits than its factorization.

20770163654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91903494.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 20770163654 in words is "twenty billion, seven hundred seventy million, one hundred sixty-three thousand, six hundred fifty-four".