1011535550551 has 8 divisors (see below), whose sum is σ = 1014434890560. Its totient is φ = 1008637744608.

The previous prime is 1011535550539. The next prime is 1011535550561. The reversal of 1011535550551 is 1550555351101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011535550551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011535550551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011535550561) 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, 943705 + ... + 1706941.

It is an arithmetic number, because the mean of its divisors is an integer number (126804361320).

Almost surely, 2^{1011535550551} is an apocalyptic number.

1011535550551 is a deficient number, since it is larger than the sum of its proper divisors (2899340009).

1011535550551 is an equidigital number, since it uses as much as digits as its factorization.

1011535550551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767033.

The product of its (nonzero) digits is 46875, while the sum is 37.

The spelling of 1011535550551 in words is "one trillion, eleven billion, five hundred thirty-five million, five hundred fifty thousand, five hundred fifty-one".