906554645501 has 4 divisors (see below), whose sum is σ = 959881389372. Its totient is φ = 853227901632.

The previous prime is 906554645459. The next prime is 906554645537. The reversal of 906554645501 is 105546455609.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 703199644900 + 203355000601 = 838570^2 + 450949^2 .

It is a cyclic number.

It is not a de Polignac number, because 906554645501 - 2²² = 906550451197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 906554645501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906554641501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26663371910 + ... + 26663371943.

It is an arithmetic number, because the mean of its divisors is an integer number (239970347343).

Almost surely, 2^906554645501 is an apocalyptic number.

It is an amenable number.

906554645501 is a deficient number, since it is larger than the sum of its proper divisors (53326743871).

906554645501 is a wasteful number, since it uses less digits than its factorization.

906554645501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53326743870.

The product of its (nonzero) digits is 3240000, while the sum is 50.

The spelling of 906554645501 in words is "nine hundred six billion, five hundred fifty-four million, six hundred forty-five thousand, five hundred one".