2665151540 has 48 divisors (see below), whose sum is σ = 6026529600. Its totient is φ = 986337792.

The previous prime is 2665151537. The next prime is 2665151569. The reversal of 2665151540 is 451515662.

It is a self number, because there is not a number n which added to its sum of digits gives 2665151540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46370 + ... + 86489.

It is an arithmetic number, because the mean of its divisors is an integer number (125552700).

Almost surely, 2^2665151540 is an apocalyptic number.

2665151540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2665151540 is an abundant number, since it is smaller than the sum of its proper divisors (3361378060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2665151540 is a wasteful number, since it uses less digits than its factorization.

2665151540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132944 (or 132942 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2665151540 is about 51625.1057141775. The cubic root of 2665151540 is about 1386.4598664063.

The spelling of 2665151540 in words is "two billion, six hundred sixty-five million, one hundred fifty-one thousand, five hundred forty".