20153663654 has 8 divisors (see below), whose sum is σ = 30447981480. Its totient is φ = 10004336496.

The previous prime is 20153663653. The next prime is 20153663689. The reversal of 20153663654 is 45636635102.

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 (20153663653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36247319 + ... + 36247874.

It is an arithmetic number, because the mean of its divisors is an integer number (3805997685).

Almost surely, 2^20153663654 is an apocalyptic number.

20153663654 is a deficient number, since it is larger than the sum of its proper divisors (10294317826).

20153663654 is a wasteful number, since it uses less digits than its factorization.

20153663654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72495334.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 20153663654 in words is "twenty billion, one hundred fifty-three million, six hundred sixty-three thousand, six hundred fifty-four".