11111009954 has 16 divisors (see below), whose sum is σ = 18259693920. Its totient is φ = 5028780960.

The previous prime is 11111009953. The next prime is 11111009969. The reversal of 11111009954 is 45990011111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11111009954.

It is not an unprimeable number, because it can be changed into a prime (11111009953) 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, 1078664 + ... + 1088915.

It is an arithmetic number, because the mean of its divisors is an integer number (1141230870).

Almost surely, 2^11111009954 is an apocalyptic number.

11111009954 is a deficient number, since it is larger than the sum of its proper divisors (7148683966).

11111009954 is a wasteful number, since it uses less digits than its factorization.

11111009954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167825.

The product of its (nonzero) digits is 1620, while the sum is 32.

The spelling of 11111009954 in words is "eleven billion, one hundred eleven million, nine thousand, nine hundred fifty-four".