11551001541 has 8 divisors (see below), whose sum is σ = 15653816544. Its totient is φ = 7574427120.

The previous prime is 11551001537. The next prime is 11551001563. The reversal of 11551001541 is 14510015511.

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

It is not a de Polignac number, because 11551001541 - 2² = 11551001537 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551000541) 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, 31559931 + ... + 31560296.

It is an arithmetic number, because the mean of its divisors is an integer number (1956727068).

Almost surely, 2^11551001541 is an apocalyptic number.

It is an amenable number.

11551001541 is a deficient number, since it is larger than the sum of its proper divisors (4102815003).

11551001541 is an equidigital number, since it uses as much as digits as its factorization.

11551001541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63120291.

The product of its (nonzero) digits is 500, while the sum is 24.

The spelling of 11551001541 in words is "eleven billion, five hundred fifty-one million, one thousand, five hundred forty-one".