1011504141661 has 8 divisors (see below), whose sum is σ = 1093832123384. Its totient is φ = 929821870080.

The previous prime is 1011504141631. The next prime is 1011504141667. The reversal of 1011504141661 is 1661414051101.

1011504141661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 66731805625 + 944772336036 = 258325^2 + 971994^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1011504141661 - 2²⁹ = 1010967270749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011504141667) 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, 161424276 + ... + 161430541.

It is an arithmetic number, because the mean of its divisors is an integer number (136729015423).

Almost surely, 2^{1011504141661} is an apocalyptic number.

It is an amenable number.

1011504141661 is a deficient number, since it is larger than the sum of its proper divisors (82327981723).

1011504141661 is a wasteful number, since it uses less digits than its factorization.

1011504141661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322855071.

The product of its (nonzero) digits is 2880, while the sum is 31.

Adding to 1011504141661 its reverse (1661414051101), we get a palindrome (2672918192762).

The spelling of 1011504141661 in words is "one trillion, eleven billion, five hundred four million, one hundred forty-one thousand, six hundred sixty-one".