2155061105067 has 32 divisors (see below), whose sum is σ = 3108409710336. Its totient is φ = 1320212880000.

The previous prime is 2155061105059. The next prime is 2155061105077. The reversal of 2155061105067 is 7605011605512.

It is a happy number.

It is not a de Polignac number, because 2155061105067 - 2³ = 2155061105059 is a prime.

It is a super-4 number, since 4×2155061105067⁴ (a number of 50 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2155061105027) 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, 18865192 + ... + 18979082.

It is an arithmetic number, because the mean of its divisors is an integer number (97137803448).

Almost surely, 2^{2155061105067} is an apocalyptic number.

2155061105067 is a deficient number, since it is larger than the sum of its proper divisors (953348605269).

2155061105067 is a wasteful number, since it uses less digits than its factorization.

2155061105067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116091.

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 2155061105067 in words is "two trillion, one hundred fifty-five billion, sixty-one million, one hundred five thousand, sixty-seven".