1011216554 has 8 divisors (see below), whose sum is σ = 1531001088. Its totient is φ = 500882860.

The previous prime is 1011216527. The next prime is 1011216587. The reversal of 1011216554 is 4556121101.

1011216554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2362442 + ... + 2362869.

It is an arithmetic number, because the mean of its divisors is an integer number (191375136).

Almost surely, 2^1011216554 is an apocalyptic number.

1011216554 is a deficient number, since it is larger than the sum of its proper divisors (519784534).

1011216554 is a wasteful number, since it uses less digits than its factorization.

1011216554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725420.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1011216554 is about 31799.6313500644. The cubic root of 1011216554 is about 1003.7249587870.

Adding to 1011216554 its reverse (4556121101), we get a palindrome (5567337655).

The spelling of 1011216554 in words is "one billion, eleven million, two hundred sixteen thousand, five hundred fifty-four".