20740154002007 has 32 divisors (see below), whose sum is σ = 22837924512000. Its totient is φ = 18678478291200.

The previous prime is 20740154001989. The next prime is 20740154002021. The reversal of 20740154002007 is 70020045104702.

It is a cyclic number.

It is not a de Polignac number, because 20740154002007 - 2²⁶ = 20740086893143 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 (20740154007007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2045576744 + ... + 2045586882.

It is an arithmetic number, because the mean of its divisors is an integer number (713685141000).

Almost surely, 2^{20740154002007} is an apocalyptic number.

20740154002007 is a deficient number, since it is larger than the sum of its proper divisors (2097770509993).

20740154002007 is a wasteful number, since it uses less digits than its factorization.

20740154002007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13487.

The product of its (nonzero) digits is 15680, while the sum is 32.

Adding to 20740154002007 its reverse (70020045104702), we get a palindrome (90760199106709).

The spelling of 20740154002007 in words is "twenty trillion, seven hundred forty billion, one hundred fifty-four million, two thousand, seven".