20371402049670 has 128 divisors (see below), whose sum is σ = 62870150246400. Its totient is φ = 4597379669376.

The previous prime is 20371402049653. The next prime is 20371402049809. The reversal of 20371402049670 is 7694020417302.

20371402049670 is a `hidden beast` number, since 2 + 0 + 3 + 71 + 4 + 0 + 20 + 496 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68069169 + ... + 68367788.

It is an arithmetic number, because the mean of its divisors is an integer number (491173048800).

Almost surely, 2^{20371402049670} is an apocalyptic number.

20371402049670 is an abundant number, since it is smaller than the sum of its proper divisors (42498748196730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20371402049670 is a wasteful number, since it uses less digits than its factorization.

20371402049670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136437059 (or 136437053 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 20371402049670 in words is "twenty trillion, three hundred seventy-one billion, four hundred two million, forty-nine thousand, six hundred seventy".