20945150007 has 8 divisors (see below), whose sum is σ = 28146763776. Its totient is φ = 13853484792.

The previous prime is 20945149933. The next prime is 20945150027. The reversal of 20945150007 is 70005154902.

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

It is a de Polignac number, because none of the positive numbers 2^k-20945150007 is a prime.

It is a super-3 number, since 3×20945150007³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20945150007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20945150027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27486693 + ... + 27487454.

It is an arithmetic number, because the mean of its divisors is an integer number (3518345472).

Almost surely, 2^20945150007 is an apocalyptic number.

20945150007 is a deficient number, since it is larger than the sum of its proper divisors (7201613769).

20945150007 is a wasteful number, since it uses less digits than its factorization.

20945150007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54974277.

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 20945150007 in words is "twenty billion, nine hundred forty-five million, one hundred fifty thousand, seven".