6161101501001 has 4 divisors (see below), whose sum is σ = 6523519236372. Its totient is φ = 5798683765632.

The previous prime is 6161101500973. The next prime is 6161101501067. The reversal of 6161101501001 is 1001051011616.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3990485664400 + 2170615836601 = 1997620^2 + 1473301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6161101501001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6161101501081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181208867660 + ... + 181208867693.

It is an arithmetic number, because the mean of its divisors is an integer number (1630879809093).

Almost surely, 2^{6161101501001} is an apocalyptic number.

It is an amenable number.

6161101501001 is a deficient number, since it is larger than the sum of its proper divisors (362417735371).

6161101501001 is a wasteful number, since it uses less digits than its factorization.

6161101501001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362417735370.

The product of its (nonzero) digits is 180, while the sum is 23.

Adding to 6161101501001 its reverse (1001051011616), we get a palindrome (7162152512617).

The spelling of 6161101501001 in words is "six trillion, one hundred sixty-one billion, one hundred one million, five hundred one thousand, one".