11920546455 has 16 divisors (see below), whose sum is σ = 20194808544. Its totient is φ = 5983646720.

The previous prime is 11920546441. The next prime is 11920546457. The reversal of 11920546455 is 55464502911.

It is a happy number.

It is not a de Polignac number, because 11920546455 - 2⁵ = 11920546423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11920546457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23373366 + ... + 23373875.

It is an arithmetic number, because the mean of its divisors is an integer number (1262175534).

Almost surely, 2^11920546455 is an apocalyptic number.

11920546455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11920546455 is a deficient number, since it is larger than the sum of its proper divisors (8274262089).

11920546455 is a wasteful number, since it uses less digits than its factorization.

11920546455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46747266.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 11920546455 in words is "eleven billion, nine hundred twenty million, five hundred forty-six thousand, four hundred fifty-five".