2100155734370 has 16 divisors (see below), whose sum is σ = 4002649752888. Its totient is φ = 790646864640.

The previous prime is 2100155734357. The next prime is 2100155734399. The reversal of 2100155734370 is 734375510012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1483068502969 + 617087231401 = 1217813^2 + 785549^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6176928461 + ... + 6176928800.

Almost surely, 2^{2100155734370} is an apocalyptic number.

2100155734370 is a deficient number, since it is larger than the sum of its proper divisors (1902494018518).

2100155734370 is a wasteful number, since it uses less digits than its factorization.

2100155734370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12353857285.

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 2100155734370 in words is "two trillion, one hundred billion, one hundred fifty-five million, seven hundred thirty-four thousand, three hundred seventy".