20406087475154 has 8 divisors (see below), whose sum is σ = 30611279113968. Its totient is φ = 10202327770500.

The previous prime is 20406087475153. The next prime is 20406087475157. The reversal of 20406087475154 is 45157478060402.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20406087475096 and 20406087475105.

It is not an unprimeable number, because it can be changed into a prime (20406087475153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357947912 + ... + 358004915.

It is an arithmetic number, because the mean of its divisors is an integer number (3826409889246).

Almost surely, 2^{20406087475154} is an apocalyptic number.

20406087475154 is a deficient number, since it is larger than the sum of its proper divisors (10205191638814).

20406087475154 is a wasteful number, since it uses less digits than its factorization.

20406087475154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715967080.

The product of its (nonzero) digits is 7526400, while the sum is 53.

The spelling of 20406087475154 in words is "twenty trillion, four hundred six billion, eighty-seven million, four hundred seventy-five thousand, one hundred fifty-four".