102155005541 has 32 divisors (see below), whose sum is σ = 116754825600. Its totient is φ = 88771921920.

The previous prime is 102155005523. The next prime is 102155005549. The reversal of 102155005541 is 145500551201.

It is a de Polignac number, because none of the positive numbers 2^k-102155005541 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 (102155005549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14868455 + ... + 14875323.

It is an arithmetic number, because the mean of its divisors is an integer number (3648588300).

Almost surely, 2^102155005541 is an apocalyptic number.

It is an amenable number.

102155005541 is a deficient number, since it is larger than the sum of its proper divisors (14599820059).

102155005541 is a wasteful number, since it uses less digits than its factorization.

102155005541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8069.

The product of its (nonzero) digits is 5000, while the sum is 29.

Adding to 102155005541 its reverse (145500551201), we get a palindrome (247655556742).

The spelling of 102155005541 in words is "one hundred two billion, one hundred fifty-five million, five thousand, five hundred forty-one".