1011534544551 has 8 divisors (see below), whose sum is σ = 1349315107840. Its totient is φ = 674055172152.

The previous prime is 1011534544547. The next prime is 1011534544583. The reversal of 1011534544551 is 1554454351101.

1011534544551 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 not a de Polignac number, because 1011534544551 - 2² = 1011534544547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011534544511) 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, 75289885 + ... + 75303318.

It is an arithmetic number, because the mean of its divisors is an integer number (168664388480).

Almost surely, 2^{1011534544551} is an apocalyptic number.

1011534544551 is a deficient number, since it is larger than the sum of its proper divisors (337780563289).

1011534544551 is a wasteful number, since it uses less digits than its factorization.

1011534544551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150595445.

The product of its (nonzero) digits is 120000, while the sum is 39.

Adding to 1011534544551 its reverse (1554454351101), we get a palindrome (2565988895652).

The spelling of 1011534544551 in words is "one trillion, eleven billion, five hundred thirty-four million, five hundred forty-four thousand, five hundred fifty-one".