1667131155 has 48 divisors (see below), whose sum is σ = 3070379520. Its totient is φ = 834421824.

The previous prime is 1667131153. The next prime is 1667131157. The reversal of 1667131155 is 5511317661.

It is an interprime number because it is at equal distance from previous prime (1667131153) and next prime (1667131157).

It is not a de Polignac number, because 1667131155 - 2¹ = 1667131153 is a prime.

It is a super-3 number, since 3×1667131155³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1667131153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82374 + ... + 100596.

It is an arithmetic number, because the mean of its divisors is an integer number (63966240).

Almost surely, 2^1667131155 is an apocalyptic number.

1667131155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1667131155 is a deficient number, since it is larger than the sum of its proper divisors (1403248365).

1667131155 is a wasteful number, since it uses less digits than its factorization.

1667131155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18360 (or 18357 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 1667131155 is about 40830.5174471253. The cubic root of 1667131155 is about 1185.7412336292.

The spelling of 1667131155 in words is "one billion, six hundred sixty-seven million, one hundred thirty-one thousand, one hundred fifty-five".